Gabriele Cosmo
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
// Copyright FreeHEP, 2005.
|
|
|
|
#include "cheprep/GZIPOutputStreamBuffer.h"
|
|
|
|
/**
|
|
* @author Mark Donszelmann
|
|
*/
|
|
namespace cheprep {
|
|
|
|
using namespace std;
|
|
|
|
GZIPOutputStreamBuffer::GZIPOutputStreamBuffer( streambuf *aBuffer)
|
|
: DeflateOutputStreamBuffer(aBuffer),
|
|
open(false) {
|
|
|
|
init(true);
|
|
}
|
|
|
|
void GZIPOutputStreamBuffer::setFilename( const string &name ) {
|
|
filename = name ;
|
|
}
|
|
|
|
void GZIPOutputStreamBuffer::setComment( const string &c ) {
|
|
comment = c ;
|
|
}
|
|
|
|
void GZIPOutputStreamBuffer::close() {
|
|
if (!open) return;
|
|
|
|
finish();
|
|
writeTrailer();
|
|
|
|
open = false ;
|
|
}
|
|
|
|
GZIPOutputStreamBuffer::~GZIPOutputStreamBuffer() {
|
|
close() ;
|
|
}
|
|
|
|
int GZIPOutputStreamBuffer::overflow( int c ) {
|
|
if (!open) {
|
|
writeHeader();
|
|
open = true;
|
|
}
|
|
return DeflateOutputStreamBuffer::overflow( c ) ;
|
|
}
|
|
|
|
void GZIPOutputStreamBuffer::writeHeader() {
|
|
unsigned char flag = 0x00;
|
|
flag |= (filename == "") ? 0x00 : 0x08;
|
|
flag |= (comment == "") ? 0x00 : 0x10;
|
|
|
|
putUB(0x1f); // Magic #
|
|
putUB(0x8b); // Magic #
|
|
putUB(0x08); // Deflater.DEFLATED
|
|
putUB(flag); // FLG
|
|
putUI(0x00000000); // MTIME
|
|
putUB(0x00); // XFLG
|
|
putUB(0x00); // OS
|
|
|
|
if (filename != "") {
|
|
putS(filename); // Filename
|
|
putUB(0x00);
|
|
}
|
|
|
|
if (comment != "") {
|
|
putS(comment); // Comment
|
|
putUB(0x00);
|
|
}
|
|
}
|
|
|
|
void GZIPOutputStreamBuffer::writeTrailer() {
|
|
putUI(getCRC());
|
|
putUI(getSize());
|
|
}
|
|
|
|
} // cheprep
|